You're spending 40 hours a week writing code that AI could do in 10.

While you're grinding through pull requests, 200k+ engineers at OpenAI, Google & Meta are using AI to ship faster.

How?

The Code newsletter teaches them exactly which AI tools to use and how to use them.

Here's what you get:

Sign up and get access to the Ultimate Claude code guide to ship 5X faster.

Join 200K+ engineers

Picture a hotel games room in Singapore. It is July 2025 and the Arsenal first team are on pre-season tour, thousands of miles from north London. A 15-year-old, who has travelled with the squad on this tour, has just been asked to do his initiation in front of the squad. He stands up and sings "You Remind Me" by Usher. The senior players cheer and he sits back down and gets on with it. That detail, small and warm as it is, tells you almost everything. This boy can walk into a room full of professional footballers at 15 and not be swallowed whole by it.

Salmon grew up in Woodford, east London. Football was always around him. His father and brother both played at semi-professional level. As a kid he played as a forward, looked up to Cristiano Ronaldo and Lionel Messi, and just wanted to be like them. Then Arsenal came calling.

The family table tells you a lot about a person. On one side, his dad's Jamaican heritage brings jerk chicken, rice and peas, curry goat. On the other, his mum's Mauritian roots bring watercress soup, rice, warm spices. Two cultures, one kitchen, and a boy growing up understanding instinctively that identity is layered. That you can carry more than one thing at once and belonging somewhere does not mean belonging only there.

It is perhaps not a coincidence that the position he eventually settled into asks exactly that of him. A centre-back in Arteta's system is not just an old-school defender. He must read the game, carry the ball, distribute under pressure, organise the line, and lead. He must be equally comfortable in tight spaces and expansive ones. He must hold his shape when everything around him is in motion. Salmon joined Arsenal at under-11 level and has progressed steadily every season since, inside an academy that had already produced Bukayo Saka, Emile Smith Rowe and Ethan Nwaneri. Seven years inside that environment, the only professional football he has ever known. You do not come out of that unchanged.

The thing about exceptional young players is that the numbers are usually not the story. They point at something. They say: there is a person here who is doing something unusual. Consider what Salmon's numbers were pointing at before he had ever played a competitive senior minute. He played six times in Premier League 2 in 2024-25 and twice in the UEFA Youth League, competitions designed for players four and five years his senior, while still a schoolboy. He trained regularly with the first team at Colney and was called into Arteta's orbit not because of a shortage of options but because the people watching him every day had already seen enough.

His own assessment of this trajectory is quietly startling. "I've played at every level from under-16s up to the first team," he said, "and funnily enough, I've found it gets easier the higher you go. The quality around you naturally lifts your game, although the pace is much quicker and you have to adapt fast." That shows the confidence of a teenager who has already internalised what most players spend years learning to articulate.

In the summer of 2025, Arteta took both Salmon and Max Dowman on the first-team pre-season tour to Singapore and Hong Kong, two 15-year-olds among senior internationals, both featuring in the opening friendly against AC Milan. Salmon signed his scholarship at Emirates Stadium that same month. He was, by every measure, exactly where he was supposed to be, and he looked entirely at ease being there. By December, Arteta had seen enough to send him onto a Champions League pitch in Belgium. He came on for Ben White in the 82nd minute of a 3-0 win over Club Brugge, becoming the fourth-youngest player to ever represent Arsenal and the youngest to make a first-team debut in a European competition, at 16 years and 103 days old.

Martin Odegaard spoke about him afterwards with the kind of warmth that tells you a player has already earned the dressing room's respect. "He's another example of how well the academy is working here," Odegaard said. "It's not so common to see someone breaking through that young, especially in his position as a defender." Three months after Bruges came Mansfield, and with it something harder. Arteta made nine changes to the side that had beaten Brighton three days earlier, handing Salmon his first senior start alongside Cristhian Mosquera and Riccardo Calafiori in a back three, with Christian Norgaard sitting as the defensive midfielder ahead of them. The One Call Stadium was sold out, the pitch was patchy, and a League One side with nothing to lose were doing everything they could to make history. Noni Madueke put Arsenal ahead four minutes before the break, and for a while it looked straightforward. Then, five minutes into the second half, Salmon's pass slowed on the difficult surface, Will Evans was onto it in an instant, drove past Mosquera and fired low past Kepa to send the stadium into raptures. The 16-year-old from Woodford stood at centre-back in the middle of it all, took the weight of the moment, and did not crumble.

Arteta brought him off in the 62nd minute, part of a double change alongside Havertz, and spoke to him as he left the pitch. What he said publicly afterwards was the kind of thing a manager says when he is not just managing a result but shaping a career. "I could sense that he was responsible," Arteta told reporters. "It is good in a way, but don't lose perspective, because everyone that has been in that dressing room, that has been at this level, has made an error, a mistake or a situation leading to a goal. The important thing is the way he played, and some of the things that he has done on the pitch." Eze came on, won the tie, and Arsenal are into the quarter-finals. Somewhere in that away dressing room at Field Mill, a 16-year-old filed away the lesson that every great defender has had to learn at some point. You make a mistake, you absorb it. you keep going.

Salmon names William Saliba as his main inspiration, and the comparison is not merely flattering, it is structurally accurate. Saliba arrived at Arsenal via a different path, but the qualities Arteta prizes most in his defensive line, the intelligence to read danger early, the composure to play through pressure, the technical assurance to carry the ball out from the back, are precisely the traits Salmon is already building his game around. His academy teammate Josh Nichols put it more simply on Instagram after the Brugge game, commenting "Young Willooo" under Salmon's post. The nickname tells you everything about how the people around him see his ceiling.

England have already taken notice. Salmon has represented the national side at under-16 and under-17 level and earned a call-up to the squad for the 2025 FIFA U-17 World Cup in Qatar. What comes next is not a question of whether but when. He is 16 years old, already shaped by seven years inside one of the most demanding development environments in European football, already tested by Champions League football and an FA Cup tie that asked serious questions of him. He answered most of them. The one he did not, he will not forget. Marli Salmon is already here. The rest is just detail.